Lubrication system for internal-combustion engines.



L. COATALEN.

LUBRICATION SYSTEM FOR INTERNAL COMBUSTION ENGINES.

APPLICATION FILED IUNE I2, I9l6. RENEWED JULY 6.19"-

Patehted Jan. 15, 1918.

2 SHEETS-SHEET lii 2 .1 5i i ii I I I l 14 lnwritoi-. Louie Coatalen L-COATALEN. I LUBRICHION swan ron INTERNAL comwsnou ew.

vAPPLICATION FILED lull 12 19'. lENE'WED JULY 5| 1.11. 1,253,940. IPatented Jan. 15,1918.

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LUBBICATION SYSTEM FOR INTERNAL-COMBUSTION ENGINES.

Specification of Letters Patent.

Patented Jan. 15, 1918.

Application med June 12. 1816, Serial No. 103,321. Renewed July 6. 1911.Serial No. 179.0%.

1 '0 oil whom it may concern;

lie it known that I, Louis Coaraum, a subject of the King of (ircal;Britain, residing at \l'olrerhanipton, in the county of h'lall'ord.England, have invented certain new and useful Improvements in Lubrica'tion Systems'for Internal-(jombustion Engines, of which the following isa specification.

This inventio relates to lubrication systcnis for internal combustionengines of the kind in which a pump or pumps is or are employed forcirculating the oil.

in the accompanying drawings,

Figure 1 is an end View partially in section. showing om: method ofcarrying out this invention.

Fig. 2 is a cross section on the line 22 of Fig. l. but showing also theoil filter which (lOt'H not appear in Fig. 1.,

Fig. 3 is a horizontal scctioi'ron the line 3 of Fig. 2.

Like letters indicate like parts throughout the'd'rawings.

In most engines the crank chamber is divided horizontally and the lowerpart is easily removablejor access to the bearings, etc. It is dcsiralie that the oil pump should be carried by tlmore-rigid upper part. butthe oil collectsin the lower part and there must be a con action betweenthe oil chamber in the loii'crwuid the oil pump on the upper part.

It is the object of the present intention to provide an improvedconnection, which is particularly applicable where a double oi pump is used one half drawing the il from thesuppiw and forcing it to thehearings.

and the other delivering the used oil'back tothe supply tank. The upperart A of the crank chamber carries the cylinders and main engine shafts,

from one of which, A is driven a vertical spindle A which drives a pairof gear wheel pumps contained the superposed casings B and C. 'Ilhesecasings are bolted together,

and the upper one is attached by bolts, one a .of which shown at B, tothe upper part A of tllu t'ltllllt chamber. The oil in the crank ch:nbcr collects in tlielowercrank chamber ""ba'rt D which is formed withnwell E. "I he used oil collecting in this well enters the lower pumpcasing C, (see Figs.

the pipe t' to the oil tank or cooler which is arranged outsidttheengine.

The pump contained in the upper casing it sucks oil from the tank alongthe passa re F from an inlet rln'unberl supplied by t e branch F, anddelivers this by the passage l to the variou parts of the engine whichrequire lubriratiou. v

lt-will be seen that oil trarelingdoivn the passage (1 enters an oilchamber C provided with a drain plug C". The oil chamber i may beconstructed as a filter chumher. as shown, and if desired the chambers land (It may be formed integral with one another, and they are attachedto the lower part i) of the crank chamber. When this lower part isdetached it is clear that the connection between the passage C and thechamber and the passage F with the chamber F, must be broken.

tion is adopted :-Eaeh of the pipes C and l carries a washer H which ispressed upward by a. spring J which abuts a ainst a. collar K fixedtothe pipe C or Between the washer H and the upper wall of the oilchamber is arranged a ring of packing material. 'lhisspr'ing-pressedwasher, in .-onjunction with the packing material provides anoil-tightconnection, but there is a clearance between the side of eachpipe and lhe side of the hole in the oil chamber through which it passesso that the pipes have a certain amount of lateral freedom andconsequently relative vibration between th two crank chamber parts doesnot throw any strain on this "connection. This clearance is too small tobe apparent in the drawings. t

, It will be clear that removal ofthe crank chan'iher part D is possiblewithout disturbing the oil pumps Further, that there is combination of.an upper crank chamber part. a lower part detachable therefrom, an onpunlpcarried by saidupper part, an oil chamber carried by said lowerpart, and afloating oil-ti ht connection between said set forth. t

2- In an internal combustion engmu, the

ump and sai oil chamber, substantially as combination of an upper crankchamber part, a lower part detachable therefrom, an oil pump carried bysaid. upper part, an oil chamber carried by said lower part, an oil pipecarried by said pump, a clearance hole in said oil chzunber throughwhich said oil pipe passes, a spriu pressed washer on said oil p1 e,substantia y as set forth.

3. 11 an internal. combustion engine, the combination of an upper crankchamber part, a lower part detachable therefrom, a pair of superposedoil pumps carried by sgid upper part, a pair of oil chambers car- 'riedby said lower part, floating oil-tight connections between each of saidpumps and 1:: one of said oil chambers, substantially as set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

LOUIS COATALEN.

Witnesses:

Iius VAN NAALTE, FREDERICK T. LANGLEY.

